|
Q 3 c ) |
Prove that for square key equally strong in shear and crushing, .................... |
4 |
|
Q 3 c ) |
Draw and explain simple vapour absorption refrigeration system |
4 |
|
Q 3 d ) |
Draw the neat sketch of single plate clutch and explain its working. |
4 |
|
Q 3 d ) |
Explain with neat sketch the bolts of uniform strength. |
4 |
|
Q 3 d ) |
Name the different sensors used in ECU of modern automobile with their application.... |
4 |
|
Q 3 e ) |
Procedure for balancing single rotating mass when its balancing mass is rotating in same plane: |
4 |
|
Q 3 e ) |
How keys are classified? Give detailed classification of keys with neat sketches; also state their applications. |
4 |
|
Q 3 e ) |
Explain different stages of combustion in C.I. engine with sketch. |
4 |
|
Q 3 f ) |
Give detailed classification of followers. |
4 |
|
Q 4 a ) |
What is centrifugal tension ? State its formula. Explain its effect on power transmitted by a belt drive |
4 |
|
Q 4a)(a)
|
Explain MPFI system with sketch |
4 |
|
Q 4a)(b)
|
Define the following related I.C. engine |
4 |
|
Q 4a)(c)
|
Draw and explain Battery ignition system. |
4 |
|
Q 4a)(ii)
|
Define the following terms with respect to springs............... |
4 |
|
Q 4a)(iv)
|
A cylinder head of steam engine is held in position by M20 bolts................ |
4 |
|
Q 4a)(l)
|
State the meaning of following colour codes in aesthetic consideration while designing the product:.......... |
4 |
|
Q 4 b ) |
State the meaning of sliding pair, turning pair, rolling pair and spherical pair with one example each. |
4 |
|
Q 4b)(a)
|
List the additives of Lubricant used in S.I. engine and state their advantages. |
6 |
|
Q 4b)(b)
|
With neat sketches explain the working principle of four stroke spark ignition engine. |
6 |
|
Q 4b)(i)
|
State the different modes of failure of gear teeth and their possible remedies to avoid the failure. |
6 |
|
Q 4b)(ii)
|
Explain the following types of stresses................ |
6 |
|
Q 4 c ) |
Draw turning moment diagram for single cylinder four stroke I.C. Engine. Label all parts. |
4 |
|
Q 4 d ) |
Explain the working of rope brake dynamometer with neat sketch. |
4 |
|
Q 4 e ) |
Problem : A vertical shaft 150 mm in diameter and rotating at 100 rpm rests on a flat end footstep bearing. The shaft carries..... |
4 |
|
Q 4 f ) |
Position and magnitude of balance mass required |
4 |
|
Q 5 a ) |
Explain construction and working of ice plant with neat sketch. |
8 |
|
Q 5 a ) |
Problem - The crank and connecting rod of a reciprocating engine are 200 mm and 700 mm respectively...... |
4 |
|
Q 5 a ) |
A vertical double start square threaded screw of 120 mm mean.......... |
8 |
|
Q 5 b ) |
A pneumatic rock drill requires 10 kg/min of air at 6 bar pressure.... |
8 |
|
Q 5 b ) |
Problem : A cam is to give the following motion to a knife edged follower : (i) Outstroke during 60° of cam rotation. (ii) Dwell for the next 30° of cam rotation............................. |
8 |
|
Q 5 b ) |
A safety valve of 60 mm diameter is to blow off at a pressure of 1.2 N/mm2. ......... |
8 |
|
Q 5 c ) |
Explain construction and working of turbojet with neat labelled sketch. |
4 |
|
Q 5 c ) |
Problem:Two parallel shafts whose centre line are 4.8 m apart, are connected by open belt drive. |
8 |
|
Q 5c)(ii)
|
Explain the terms self locking and overhauling of screw. |
8 |
|
Q 5c)(l)
|
Differentiate between sliding contact and rolling contact bearings. |
6 |
|
Q 6 a ) |
Represent subcooling and superheating on P-h and T-S diagram.... |
4 |
|
Q 6a)(i)
|
State and explain law of gearing with the help of suitable sketch. |
4 |
|
Q 6a)(ii)
|
Compare flywheel and governor. |
4 |
|
Q 6 b ) |
A semi-elliptical carriage spring of 1200 mm length withstands a load of 60 kN....... |
8 |
|
Q 6 b ) |
Define perfect and imperfect inter-cooling in air compressor and show it by graph also.... |
4 |
|
Q 6 b ) |
In a simple band brake, the band acts on the 3/4th of circumference of a drum of 450 mm diameter............. |
8 |
|
Q 6 c ) |
A wall bracket is fixed to the wall by means of three bolts.............. |
8 |
|
Q 6 c ) |
Draw P-V and T-S diagram for dual cycle. Name the processes involved in it..... |
4 |
|
Q 6 c ) |
A single plate clutch with both sides effective has outer and inner diameters ....... |
8 |
|
Q 6 d ) |
Explain the selection procedure of bearings from manufacturer’s catalogue. |
8 |
|
Q 6 d ) |
Give classification of air conditioning system...... |
4 |
|
Q 6 e ) |
State the applications of following bearings with suitable reasons: |
8 |
|
Q 6 e ) |
Compare, closed cycle and open cycle gas turbine..... |
4 |
|
Q 6 f ) |
State the different methods used to improve thermal |
4 |
